Counting Cliques Time Limit: 8000/4000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 1855    Accepted Submission(s): 735 Problem Description A clique is a complete graph, in which there is an edge between every pai…

Counting Cliques Time Limit: 8000/4000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 539    Accepted Submission(s): 204 Problem Description A clique is a complete graph, in which there is an edge between every pair…

题目: A clique is a complete graph, in which there is an edge between every pair of the vertices. Given a graph with N vertices and M edges, your task is to count the number of cliques with a specific size S in the graph. Input: The first line is the n…

Counting Cliques HDU - 5952 OJ-ID: hdu-5952 author:Caution_X date of submission:20191110 tags:dfs,graph description modelling:给定点数,边数,问包含有x个点的完全图种类数 major steps to solve it:(1)选择一个点作为起点,记录该起点的所有连通点,dfs(该点)此时完全图有两个点(2)遍历(1)中选定点的连通点,若构成完全图,则dfs(能够与(1)的…

题目链接 Problem Description There is a tree with n nodes, each of which has a type of color represented by an integer, where the color of node i is ci. The path between each two different nodes is unique, of which we define the value as the number of di…

排列2 Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 5817    Accepted Submission(s): 2229 Problem Description Ray又对数字的列产生了兴趣:现有四张卡片,用这四张卡片能排列出很多不同的4位数,要求按从小到大的顺序输出这些4位数.   Input 每组数据占一行,代表四张卡片上的数…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=5952 题意:求图中规模为s的团的个数. DFS+剪枝,姿势不好很容易TLE啊. #include <bits/stdc++.h> using namespace std; ; int n, m, s, ret; int dig[maxn]; int G[maxn][maxn]; int tmp[maxn], t; int edge[maxn][maxn]; int id[maxn]; void d…

题意: N个点形成一棵树.给出根结点P还有树结构的信息. 输出每个点的F[i].F[i]:以i为根的所有子结点中编号比i小的数的个数. 0<n<=10^5 思路: 方法一:直接DFS,进入结点x时记录一下比x小的数的个数.出来x时记录一下比x小的数的个数.相减就是F[x].结合树状数组. 方法二:写下DFS序.对DFS序列建线段树.然后从小到大对结点进行插入.用线段树统计. 代码:(方法一) int const N=1e5+5; int n,p; vector<int> G[N];…

A clique is a complete graph, in which there is an edge between every pair of the vertices. Given a graph with N vertices and M edges, your task is to count the number of cliques with a specific size S in the graph.  InputThe first line is the number…

Counting Offspring Time Limit: 15000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3054    Accepted Submission(s): 1031 Problem Description You are given a tree, it’s root is p, and the node is numbered from 1…